Fan assembly

Abstract

A fan assembly comprises a motor, a frame body and fan blades. The frame body is provided with an accommodating space and a first opening. The motor is located in the accommodating space. The fan blade is pivoted to the motor and rotates relative to a rotating shaft extending along a direction. The fan blade comprises a hub, a plurality of first blades and a plurality of second blades. The first thickness of the first blade is larger than the second thickness of the second blade, and the hub and the first blade are exposed out of the first opening. And the top surface of the first blade is coplanar with the top surface of the frame body.

Description

Technical Field

[0001] The present disclosure relates to a fan assembly. Background Art

[0002] In recent years, fans have gradually evolved towards a thinner and thinner trend. However, in response to the requirements of the ultra-thin design, when the thickness of the fan gradually decreases, the area of the fan blades must also be correspondingly reduced, thereby resulting in a decrease in the heat dissipation efficiency of the fan.

[0003] Therefore, how to propose a fan assembly that can solve the above problems is one of the problems that the industry is eager to invest in research and development resources to solve at present. Summary of the Utility Model

[0004] In view of this, an object of the present disclosure is to propose a fan assembly that can solve the above problems.

[0005] To achieve the above object, according to an embodiment of the present disclosure, a fan assembly includes a motor, a housing, and fan blades. The housing has an accommodation space, a first opening, and a second opening. The motor is located in the accommodation space. The fan blades are located in the accommodation space. The fan blades are pivotally connected to the motor and rotate relative to a rotating shaft extending along a direction. The fan blades include a hub, a plurality of first blades, and a plurality of second blades. The center of the hub has a rotating shaft. The rotating shaft is pivotally connected to the motor. The first blades surround the hub and radiate outwardly centered on the hub and correspond to the first opening. One end of the first blade is connected to the hub, and the first blade has a first thickness in this direction. The second blades surround the first blades. One end of the second blade is connected to the other end of the corresponding first blade, and the second blade has a second thickness in this direction. The first thickness of the first blade is greater than the second thickness of the second blade. The hub and the first blades are exposed at the first opening, and the top surface of the first blade is coplanar with the top surface of the housing.

[0006] In one or more embodiments of the present disclosure, the fan blades further include a disk body. The first blades protrude from the disk body along this direction. The second blades protrude from the disk body along this direction.

[0007] In one or more embodiments of the present disclosure, the plurality of first blades are located in the inner circle of the disk body. The second blades are located in the outer circle of the disk body.

[0008] In one or more embodiments of the present disclosure, the disk body, the first blades, and the second blades are integrally formed.

[0009] In one or more embodiments of the present disclosure, the disk body has a top surface and a bottom surface. The first blades have a top surface and a bottom surface. The second blades have a top surface and a bottom surface.

[0010] In one or more embodiments of the present disclosure, the first thickness of the first blade is the distance from the bottom surface to the top surface of the first blade. The second thickness of the second blade is the distance from the bottom surface to the top surface of the second blade.

[0011] In one or more embodiments of the present disclosure, the top surfaces of the first blade and the second blade are higher than the top surface of the disk body. The bottom surfaces of the first blade and the second blade are lower than the bottom surface of the disk body.

[0012] In one or more embodiments of the present disclosure, the bottom surfaces of the first blade, the second blade, and the disk body are coplanar.

[0013] In one or more embodiments of the present disclosure, the housing includes a bottom plate, a top plate, and side plates. The accommodating space is jointly defined by the bottom plate, the top plate, and the side plates. The top plate has a top surface, and the first opening is located on the top plate.

[0014] In one or more embodiments of the present disclosure, the first thickness of the first blade is less than or equal to 2 millimeters.

[0015] In summary, in the fan assembly of the present disclosure, since the fan blade includes the first blade and the second blade, and the first thickness of the first blade is greater than the second thickness of the second blade, the working area of the entire fan blade can be increased.

[0016] The above is only used to elaborate on the problems to be solved by the present disclosure, the technical means for solving the problems, and the effects produced thereby. The specific details of the present disclosure will be introduced in detail in the following embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To make the above and other objects, features, advantages, and embodiments of the present disclosure more obvious and understandable, the descriptions of the accompanying drawings are as follows:

[0018] Figure 1 A perspective view of a fan assembly according to an embodiment of the present disclosure is shown;

[0019] Figure 2 A perspective view of a fan blade according to an embodiment of the present disclosure is shown;

[0020] Figure 3 Shown is a sectional view of a fan assembly taken along the cutting plane line A-A' according to an embodiment of the present disclosure Figure 1 is shown.

[0021]

SYMBOL DESCRIPTION

[0022] 100: Fan assembly

[0023] 110: Housing

[0024] 110a, 122a, 124a, 126a: Top surface

[0025] 112: Bottom plate

[0026] 114: Top plate

[0027] 116: Side plate

[0028] 120: Fan blade

[0029] 1201: Hub

[0030] 1202: Rotating shaft

[0031] 1203: Blade

[0032] 122: Disk body

[0033] 122b, 124b, 126b: Bottom surface

[0034] 124: First blade

[0035] 126: Second blade

[0036] A - A’: Cutting plane line

[0037] AS: Accommodating space

[0038] D 120 , D OP : Diameter

[0039] H AS : Height

[0040] MT: Motor

[0041] OP1: First opening

[0042] OP2: Second opening

[0043] T 124 : First thickness

[0044] T 126 : Second thickness

[0045] W AS : Width

[0046] X, Y, Z: Directions Detailed implementation manners

[0047] The following will disclose multiple embodiments of the present disclosure with the accompanying drawings. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not intended to limit the present disclosure. That is to say, in some embodiments of the present disclosure, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and elements will be shown in a simple schematic manner in the drawings. The same reference numerals will be used to represent the same or similar elements in all the drawings.

[0048] The following will detail the structures, functions of each element included in the fan assembly 100 of this embodiment, and the connection relationships between the elements.

[0049] Please refer to Figure 1 。 Figure 1 is a perspective view of a fan assembly 100 according to an embodiment of the present disclosure. As Figure 1 shown, in this embodiment, the fan assembly 100 includes a motor MT, a housing 110, and a fan blade 120. The motor MT and the fan blade 120 are located in the housing 110. The housing 110 has a first opening OP1 and a second opening OP2. The fan blade 120 includes a hub 1201, a rotating shaft 1202 connected to the center of the hub 1201, and a plurality of blades 1203 radially extending outward with the hub 1201 as the center, and the rotating shaft 1202 is pivotally connected to the motor MT. The fan blade 120 is driven by the motor MT to rotate relative to the rotating shaft 1202 extending along a direction (for example, direction Z). A part of the hub 1201 of the fan blade 120 and the blades 1203 connected to the hub 1201 are exposed at the first opening OP1.

[0050] In some embodiments, the first opening OP1 is located at the top of the housing 110. In some embodiments, the housing 110 includes a second opening OP2 different from the first opening OP1. Specifically, the first opening OP1 is provided at the top of the housing 110, and the second opening OP2 is provided at the side of the housing 110. In some embodiments, the first opening OP1 is configured as the air inlet of the fan assembly 100, and the second opening OP2 is configured as the air outlet of the fan assembly 100. In this case, a heating element (not shown) is located on one side of the second opening OP2 (air outlet), and the air flow generated by the air outlet of the fan assembly 100 achieves the effect of dissipating heat from the heating element.

[0051] In some embodiments, the motor MT pivotally connects the rotating shaft 1202 of the fan blade 120 and corresponds to the center of the hub 1201 and the center of the first opening OP1.

[0052] In some embodiments, the first opening OP1 is circular. However, the present disclosure is not intended to limit the shape of the first opening OP1.

[0053] Please refer to Figure 2 . Figure 2 It is a perspective view of the fan blade 120 according to an embodiment of the present disclosure. As Figure 2 shown, in this embodiment, the fan blade 120 further includes a disk body 122, and each blade 1203 includes a first blade 124 and a second blade 126. A plurality of first blades 124 protrude from the disk body 122 along a direction (for example, the direction Z). The plurality of first blades 124 surround the hub 1201. As Figure 1 and Figure 2 shown, the plurality of first blades 124 correspond to the first opening OP1 of the frame body 110. A plurality of second blades 126 protrude from the disk body 122 along a direction (for example, the direction Z). The plurality of second blades 126 surround the plurality of first blades 124. As Figure 1 and Figure 2 shown, the plurality of second blades 126 are located in the frame body 110. Specifically, the plurality of first blades 124 are located in the inner circle of the disk body 122, and the plurality of second blades 126 are located in the outer circle of the disk body 122. The plurality of first blades 124 are located on one side of the disk body 122 close to the hub 1201, and one end of each first blade 124 is connected to the hub 1201. The plurality of second blades 126 are located on one side of the disk body 122 away from the hub 1201, and one end of each second blade 126 is connected to the other end of each first blade 124.

[0054] In some embodiments, when viewed from above (for example, viewed from above along the direction Z), the shape of the fan blade 120 is generally circular. However, the present disclosure does not intend to limit the shape of the fan blade 120.

[0055] In some embodiments, when viewed from above (for example, viewed from above along the direction Z), the shape of the disk body 122 is generally circular. However, the present disclosure does not intend to limit the shape of the disk body 122.

[0056] In some embodiments, the plurality of second blades 126 are connected to the plurality of first blades 124. In some embodiments, the disk body 122, several first blades 124, and several second blades 126 are integrally formed.

[0057] Please refer to Figure 3 . Figure 3 It is a cross-sectional view of the fan assembly 100 based on the cutting plane line A-A' according to an embodiment of the present disclosure. As Figure 1 shown, the cutting plane line A-A' extends parallel along a direction (for example, the direction X) and passes through the motor MT, the frame body 110, and the fan blade 120. As Figure 1 shown, the cutting plane line A-A' extends parallel along a direction (for example, the direction X) and passes through the motor MT, the frame body 110, and the fan blade 120. As Figure 3As shown, in the present embodiment, the housing 110 further has a receiving space AS. The receiving space AS communicates with the first opening OP1 and the second opening OP2. The motor MT is located in the receiving space AS of the housing 110. The plurality of first blades 124 and the plurality of second blades 126 of the fan blade 120 are located in the receiving space AS of the housing 110. As Figure 3 shown, the housing 110 includes a bottom plate 112, a top plate 114, and a side plate 116. The receiving space AS is jointly defined by the bottom plate 112, the top plate 114, and the side plate 116. The first opening OP1 is located on the top plate 114 of the housing 110. The housing 110 further has a top surface 110a. Specifically, the top surface 110a of the housing 110 is located on the top plate 114. The plurality of first blades 124 correspond to the first opening OP1 located on the top plate 114 of the housing 110. Specifically, the hub 1201 and the plurality of first blades 124 pass through the first opening OP1 of the housing 110. In some embodiments, the hub 1201 and the plurality of first blades 124 are exposed at the first opening OP1, while the plurality of second blades 126 are located in the receiving space AS and are not exposed at the first opening OP1. In some other embodiments, several of the first blades 124 are exposed at the first opening OP1, and portions of several of the second blades 126 (i.e., the portions of several of the second blades 126 close to several of the first blades 124) are exposed at the first opening OP1.

[0058] Please continue to refer to Figure 3 。As Figure 3 shown, the disk body 122 has a top surface 122a and a bottom surface 122b. The plurality of first blades 124 have a top surface 124a and a bottom surface 124b. The plurality of second blades 126 have a top surface 126a and a bottom surface 126b. The plurality of first blades 124 and the plurality of second blades 126 extend from the top surface 122a and the bottom surface 122b of the disk body 122. That is, the plurality of first blades 124 and the plurality of second blades 126 each extend upward from the top surface 122a of the disk body 122 and downward from the bottom surface 122b. The top surface 124a of the plurality of first blades 124 is coplanar with the top surface 110a of the housing 110. As Figure 3 shown, the plurality of first blades 124 have a first thickness T in a direction (for example, the direction Z) 124 。The plurality of second blades 126 have a second thickness T in a direction (for example, the direction Z) 126 。Specifically, the first thickness T of the plurality of first blades 124 124 is the distance from the bottom surface 124b to the top surface 124a. The second thickness T of the plurality of second blades 126 126 is the distance from the bottom surface 126b to the top surface 126a.

[0059] In some embodiments, a first thickness T of the plurality of first vanes 124 in a direction (e.g., the direction Z) is 124 greater than a second thickness T of the plurality of second vanes 126 in a direction (e.g., the direction Z). 126 .

[0060] In some embodiments, the top surfaces 124a of the plurality of first vanes 124 and the top surfaces 126a of several second vanes 126 are higher than the top surface 122a of the disk body 122. In some embodiments, the bottom surfaces 124b of the plurality of first vanes 124 and the bottom surfaces 126b of the plurality of second vanes 126 are lower than the bottom surface 122b of the disk body 122.

[0061] In some other embodiments, the bottom surfaces 124b of the plurality of first vanes 124, the bottom surfaces 126b of the plurality of second vanes 126, and the bottom surface 122b of the disk body 122 are coplanar.

[0062] Please continue to refer to Figure 3 . As Figure 3 shown, the accommodation space AS of the frame body 110 has a height H in a direction (e.g., the direction Z). AS . Specifically, the height H of the accommodation space AS of the frame body 110 AS is the distance from the bottom plate 112 to the top plate 114. In some embodiments, a second thickness T of the plurality of second vanes 126 in a direction (e.g., the direction Z) 126 is less than or equal to the height H of the accommodation space AS in a direction (e.g., the direction Z). AS . In some embodiments where a second thickness T of several second vanes 126 in a direction (e.g., the direction Z) 126 is equal to the height H of the accommodation space AS in a direction (e.g., the direction Z), since several second vanes 126 occupy the accommodation space AS as much as possible, the working area of the fan blade 120 during rotation can be maximized. AS

[0063] In some embodiments, the height H of the accommodation space AS of the frame body 110 AS is less than or equal to about 2 millimeters (mm). However, the present disclosure does not intend to limit the value of the height H AS of the accommodation space AS of the frame body 110.

[0064] In some embodiments, a first thickness T of the plurality of first vanes 124 124 is less than or equal to about 2 millimeters (mm). However, the present disclosure does not intend to limit the value of the first thickness T 124 of the plurality of first vanes 124.

[0065] Please continue to refer to Figure 3As shown in Figure 3 the accommodation space AS of the housing 110 has a width W in a direction (e.g., direction X). AS The first opening OP1 has a diameter D in a direction (e.g., direction X or direction Y). OP The fan blade 120 has a diameter D in a direction (e.g., direction X or direction Y). 120 In some embodiments, the diameter D of the fan blade 120 120 is greater than the diameter D of the first opening OP1. OP The diameter D of the fan blade 120 in a direction (e.g., direction X or direction Y) 120 is less than or equal to the width W of the accommodation space AS in a direction (e.g., direction X or direction Y). AS In some embodiments where the diameter D of the fan blade 120 in a direction (e.g., direction X or direction Y) 120 is equal to the width W of the accommodation space AS in a direction (e.g., direction X or direction Y), AS since the plurality of second blades 126 occupy the accommodation space AS as much as possible, the working area of the fan blade 120 during rotation can be maximized.

[0066] With the foregoing structural configuration, since the plurality of first blades 124 and the plurality of second blades 126 of the fan blade 120 occupy the accommodation space AS as much as possible, the relatively enlarged plurality of first blades 124 and the plurality of second blades 126 become very important factors affecting the heat dissipation efficiency of the ultra-thin fan assembly 100 in the ultra-thin fan assembly 100. More specifically, it has been experimentally confirmed that the fan assembly 100 of the present disclosure can increase the air pressure by about two percent (2%) and increase the air flow rate by about sixteen percent (16%) compared with the conventional fan assembly. Thereby, the fan assembly 100 of the present disclosure effectively improves the heat dissipation efficiency and successfully breaks through the bottleneck that the ultra-thin fan cannot improve the heat dissipation efficiency.

[0067] From the foregoing detailed description of the specific embodiments of the present disclosure, it can be clearly seen that in the fan assembly of the present disclosure, since the fan blade includes a first blade and a second blade, and the first thickness of the first blade is greater than the second thickness of the second blade, the working area of the entire fan blade can be increased.

[0068] Although the present disclosure has been disclosed as above in embodiments, it is not intended to limit the present disclosure. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the scope defined by the appended claims.

Claims

1. A fan assembly, characterized in that: Include: a motor; a frame having a containing space, a first opening and a second opening, and the motor is located in the containing space; and A fan blade is located in the accommodating space, the fan blade is pivotally connected to the motor and rotates relative to a rotating shaft extending along a direction, wherein the fan blade comprises: A hub having the rotating shaft at its center, the rotating shaft being pivotally connected to the motor; A plurality of first blades surround the hub and extend radially outward with the hub as the center and correspond to the first opening, one end of the plurality of first blades is connected to the hub, and the plurality of first blades have a first thickness in the direction; as well as A plurality of second blades surround the plurality of first blades, one end of the plurality of second blades is connected to the other end of the corresponding first blade, and the plurality of second blades have a second thickness in the direction; The first thickness of the first blades is greater than the second thickness of the second blades, the hub and the first blades are exposed from the first opening, and a top surface of the first blades is coplanar with a top surface of the frame.

2. The fan assembly according to claim 1, characterized in that The fan blade further includes a disk body, the plurality of first blades protrude from the disk body along the direction, and the plurality of second blades protrude from the disk body along the direction.

3. The fan assembly according to claim 2, characterized in that The plurality of first blades are located on the inner circle of the disc body, and the plurality of second blades are located on the outer circle of the disc body.

4. The fan assembly according to claim 2, wherein: The disc body, the plurality of first blades and the plurality of second blades are integrally formed.

5. The fan assembly according to claim 2, wherein: The disk body has a top surface and a bottom surface, the plurality of first blades have the top surface and a bottom surface, and the plurality of second blades have a top surface and a bottom surface.

6. The fan assembly according to claim 5, characterized in that The first thickness of the first blades is a distance from the bottom surface to the top surface of the first blades, and the second thickness of the second blades is a distance from the bottom surface to the top surface of the second blades.

7. The fan assembly according to claim 5, characterized in that The top surfaces of the first blades and the second blades are higher than the top surface of the disk, and the bottom surfaces of the first blades and the second blades are lower than the bottom surface of the disk.

8. The fan assembly according to claim 5, wherein: The bottom surfaces of the first blades, the bottom surfaces of the second blades, and the bottom surface of the disk are coplanar.

9. The fan assembly according to claim 1, wherein: The frame includes a bottom plate, a top plate and a side plate. The accommodating space is defined by the bottom plate, the top plate and the side plate. The top plate has the top surface, and the first opening is located on the top plate.

10. The fan assembly according to claim 1, wherein: The first thickness of the plurality of first blades is less than or equal to 2 mm.

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